Patent · US Active

Sensor for capturing a moving material web

US9743008B2 · kind B2 · utility

2Cited by
22References
13Claims
0Family size

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Inventors

Key dates

Filing dateAug 19, 2013
Grant dateAug 22, 2017
Priority date
Expiry dateOct 21, 2033

Classification

  • Technology area (CPC G)Physics
  • CPC primaryG01B11/00
  • WIPO fieldAudio-visual technology
  • WIPO sectorElectrical engineering

Abstract

A sensor (1) serves for capturing a moving material web (2). It has at least one light source (4) and at least one light detector (10). At least one polarization element (15) is provided between the two, which polarization element influences polarization properties of the light transmitted by the polarization element (15) as a function of an electric field. Markings such as for example metal strips (13) in the material web (2) can thus be captured in the light detector (10) without problem.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.